Bolt patterns consisting of several bolts can be split into single bolts. These single bolts behave as bolt patterns inserted with the 'center' option. You can add bolt lines and columns.
To access the command
Ribbon: Objects > Connection objects: 
Command line: ASTORSEPARATESCRWES
To split bolt group
- On the
Objects
tab,
Connection objects
panel: Click .
- Select one or more patterns.
- The bolt patterns are split into single bolts.